Kyoto, Japan

Masaya Asai

This inventor holds 20 USPTO granted patents and 1 published patent application, primarily in Substrate Processing. Top assignees: Screen Holdings Co., Ltd., Dainippon Screen Mfg. Co., Ltd.. Active years: 2000-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaya Asai. Retrieved from https://idiyas.com/inventor/masaya-asai

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 20 

% Patents Active = 100.0

Average Co-Inventor Count = 4.8

ph-index = 2

Forward Citations = 24(Granted Patents)


Company Filing History:


Years Active: 2000-2025

Loading Chart...
Areas of Expertise:
Substrate Processing
Film Processing
Exposure Device
Thermal Processing
Etching Device
Development Unit
Atmosphere Monitoring
Substrate Treating
20 patents (USPTO):Explore Patents

Title: **Masaya Asai: Innovator in Film Processing Technology**

Introduction

Masaya Asai, an accomplished inventor based in Kyoto, Japan, has made significant contributions to the field of film processing technology. With a remarkable portfolio of 19 patents, Asai has demonstrated his expertise and creativity in developing innovative solutions for substrate processing.

Latest Patents

Asai's recent inventions include a sophisticated film processing method that involves the utilization of a nozzle stored in a nozzle storage hole of a waiting pod. In this innovative process, a cleaning liquid is discharged from multiple discharge ports onto the outer peripheral surface of the nozzle, effectively dissolving and removing any coating liquid and solidified matter adhered to it. The procedure continues with a metal removal liquid that is similarly applied, ensuring that any remaining metallic components are eliminated. Finally, pure water is used to cleanse away any residual metal removal liquid from the nozzle's surface.

Additionally, Asai has developed a substrate processing apparatus, including a film formation unit and methods for processing substrates and film formation. This involves supplying a metal-containing coating liquid to the surface of a substrate, which subsequently transports the substrate to a metal removal unit, where a specially formulated removal liquid is applied to dissolve the metal-containing coating film, while preserving the film in designated areas of the substrate.

Career Highlights

Throughout his career, Masaya Asai has worked for notable companies, including Screen Holdings Co., Ltd. and Dainippon Screen Mfg. Co., Ltd. His roles in these organizations have allowed him to harness and apply his innovative ideas, thus advancing the technology involved in film processing.

Collaborations

Asai has collaborated with esteemed colleagues, including Masahiko Harumoto and Yuji Tanaka. These partnerships have fostered a dynamic exchange of ideas, promoting creativity and innovation in their respective projects.

Conclusion

With a proven track record of inventive achievements, Masaya Asai continues to be a pivotal figure in the advancement of film processing technologies. His contributions not only reflect his innovative spirit but also pave the way for future developments in the industry.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…